A device and preparation method for producing combustible gas by pyrolyzing carbon black from tires

A tire pyrolysis and carbon black technology, applied in the manufacture of combustible gas, sustainable manufacturing/processing, climate sustainability, etc., can solve the problems of low commercial value, poor surface activity, practical application limitations, etc., to improve the use value , The effect of low equipment investment cost and compact equipment structure

Inactive Publication Date: 2018-03-27
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because waste tire pyrolysis carbon black contains recycled carbon black fillers, inorganic ash (such as ZnO and ZnS, etc.) and carbonaceous deposits generated during pyrolysis, its surface activity is poor and its commercial value is very low, making it Practical applications are very limited

Method used

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  • A device and preparation method for producing combustible gas by pyrolyzing carbon black from tires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Utilize the device of the present invention to carry out the method for producing combustible gas by tire pyrolysis carbon black, comprising the following steps:

[0032] (1) In the combustion chamber, carbon black undergoes incomplete combustion reaction with excess air, the excess air coefficient is 0.6, and the combustion temperature of carbon black is 800°C, generating high-temperature flue gas containing carbon dioxide;

[0033] (2) The high-temperature flue gas enters the gasification chamber after passing through the gas-solid separation device and absorbing and removing part of the carbon dioxide, and the CO in the flue gas 2 The concentration is 33%, the temperature in the gasification chamber is 700°C, the particle size range of carbon black in the gasification chamber is 40-50 μm, and the gasification reaction occurs with carbon dioxide and water vapor in the high-temperature flue gas, and the water vapor and water vapor in the gasification chamber are control...

Embodiment 2

[0037] Utilize the device of the present invention to carry out the method for producing combustible gas by tire pyrolysis carbon black, comprising the following steps:

[0038] (1) In the combustion chamber, carbon black undergoes incomplete combustion reaction with excess air, the excess air coefficient is 0.7, and the combustion temperature of carbon black is 1000°C, generating high-temperature flue gas containing carbon dioxide;

[0039] (2) The high-temperature flue gas enters the gasification chamber after passing through the gas-solid separation device and absorbing and removing part of the carbon dioxide, and the CO in the flue gas 2The concentration is 36%, the temperature in the gasification chamber is 800°C, the particle size of carbon black in the gasification chamber is 20-40 μm, and it reacts with carbon dioxide and water vapor in the high-temperature flue gas, and the water vapor and water vapor in the gasification chamber are controlled. The equivalent ratio of...

Embodiment 3

[0043] Utilize the device of the present invention to carry out the method for producing combustible gas by tire pyrolysis carbon black, comprising the following steps:

[0044] (1) In the combustion chamber, carbon black undergoes incomplete combustion reaction with excess air, the excess air coefficient is 0.8, and the combustion temperature of carbon black is 1100°C, generating high-temperature flue gas containing carbon dioxide;

[0045] (2) The high-temperature flue gas enters the gasification chamber after passing through the gas-solid separation device and absorbing and removing part of the carbon dioxide, and the CO in the flue gas 2 The concentration is 40%, the temperature in the gasification chamber is 900°C, the particle size of carbon black in the gasification chamber is controlled below 20 μm, the carbon dioxide and water vapor in the high-temperature flue gas undergo gasification reaction, and the water vapor and carbon black in the gasification chamber are contr...

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Abstract

The invention provides a device for producing combustible gas from carbon black through tyre pyrolysis and a preparation method. The device comprises a combustion chamber arranged at the lower part and a vaporizing chamber arranged at the upper part, wherein a vapor secondary heating device is arranged between the combustion chamber and the vaporizing chamber. The preparation method comprises the following steps: (1) carbon black and combustion air burn in the combustion chamber to generate high-temperature flue gas containing carbon dioxide; (2) the high-temperature flue gas enters the vaporizing chamber after gas-solid separation and carbon dioxide absorption, and the carbon black has gasification reaction with carbon dioxide and vapor to generate high-temperature combustible gas containing hydrogen and carbon monoxide; (3) the high-temperature combustible gas enters a waste heat boiler to generate vapor, the vapor subsequently enters the secondary heating device and is converted into superheated vapor, and the superheated vapor enters the vaporizing chamber. According to the invention, high-temperature carbon dioxide flue gas generated through combustion of carbon black through tyre pyrolysis is used as the direct heating source and carbon source of carbon black gasification, the thermal efficiency of the device is high, the whole technological process is compact in technology, and the investment cost of the device is low.

Description

technical field [0001] The invention belongs to the technical field of pyrolysis treatment of waste tires, and in particular relates to a method and a device for producing combustible gas by pyrolyzing carbon black from tires. Background technique [0002] Pyrolytic carbon black is the key product of waste tire pyrolysis, its quality and market application value directly restrict the economy of waste tire pyrolysis process. However, because waste tire pyrolysis carbon black contains recycled carbon black fillers, inorganic ash (such as ZnO and ZnS, etc.) and carbonaceous deposits generated during pyrolysis, its surface activity is poor and its commercial value is very low, making it Practical applications are greatly limited. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a method and device for producing high-quality combustible gas by pyrolyzing carbon black from waste tires. After gas-solid separation and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/20C10J3/84C10J3/86
CPCY02P20/10Y02P20/129
Inventor 罗思义仪垂杰高义强
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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